Pineal calcification on computed tomography

Pineal gland visible in palin skull radiography when calcified had been an important indicator for evaluation of any space, occupying lesion within cranium according to displacement of it from normal midline position. Sincethe pineal gland is more frequently demonstrated on CT scan than plain skull radiography, it seems helpful todefine the incidence and localization of pineal gland. 324 patients, performed head CT scan are analyzed incidenceand localization of calcified pineal gland. The resuls were as follows; 1. The overall incidence of pineal calcification was 51%. 2. The male and female ratio in pineal calcification was 56% to 43%. 3. 1) In the AP localization of pineal gland, the ratio of distance from anterior inner table of the skull to the pineal gland and that from pineal gland to the posterior inner table was 1.46±0.20. 2) In the lateral localization of pinealgland, accoridng to 'Lateral Percentage Shift' by Hahn & Rim (1976), the resul was 0.93% shift in 80 normal cases, but 2.20% shift in 38 cases with S.O.L.